In main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Execution/ExecutionModeCommandService.cs
Line 234
foreach (CustomExecutionMode mode in GetGlobalCustomExecutionModes ().Data) {
if (ctx.CanExecute (mode.ExecutionHandler)) {
The value of "mode" is shown as "null", which is wrong.
Maybe a bug in the demangling of hoisted locals?